15223447172673 has 12 divisors (see below), whose sum is σ = 21989491897620. Its totient is φ = 10148933303136.

The previous prime is 15223447172621. The next prime is 15223447172677. The reversal of 15223447172673 is 37627174432251.

15223447172673 is a `hidden beast` number, since 1 + 5 + 2 + 2 + 34 + 471 + 72 + 6 + 73 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9196559651889 + 6026887520784 = 3032583^2 + 2454972^2 .

It is not a de Polignac number, because 15223447172673 - 2¹² = 15223447168577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15223447172677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 655315 + ... + 5556647.

It is an arithmetic number, because the mean of its divisors is an integer number (1832457658135).

Almost surely, 2^{15223447172673} is an apocalyptic number.

It is an amenable number.

15223447172673 is a deficient number, since it is larger than the sum of its proper divisors (6766044724947).

15223447172673 is a wasteful number, since it uses less digits than its factorization.

15223447172673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5246448 (or 5246445 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 54.

The spelling of 15223447172673 in words is "fifteen trillion, two hundred twenty-three billion, four hundred forty-seven million, one hundred seventy-two thousand, six hundred seventy-three".